It will post a list of checks you’ve defined as a Pull Request comment when a new pull request is created.
Simply install the project via composer, and use the interface to configure a list of checks you want to post on repositories. You can use different checks for each branch if you want to.

It can save time for your team by avoiding them to check rather insistently for common mistake and focus on code architecture, algoritmh, comprehension…

PS: The code style is just one example to illustrate the purpose of the project in a global way. Between you and me, on my team, there’s a pre-commit hook to prevent dev from commiting non PSR2 valid code.